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GCN Circular 24959

Subject
LIGO/Virgo S190701ah Global MASTER-Net observations report
Date
2019-07-02T00:37:13Z (5 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, 
V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov 
(Lomonosov Moscow State University, SAI, Physics Department),

R. Podesta, C.Lopez, F. Podesta, C.Francile 
(Observatorio Astronomico Felix Aguilar OAFA),

H.Levato 
(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE),

R. Rebolo, M. Serra 
(The Instituto de Astrofisica de Canarias)

D. Buckley 
(South African Astronomical Observatory),

O.A. Gres, N.M. Budnev, O.Ershova 
(Irkutsk State University, API),

A. Tlatov, D. Dormidontov 
(Kislovodsk Solar Station of the Pulkovo Observatory),

V. Yurkov, A. Gabovich, Yu. Sergienko 
(Blagoveschensk Educational State University)




MASTER-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the LIGO/Virgo S190701ah errorbox  12955 sec after trigger time at 2019-07-02 00:09:01 UT, with upper limit up to  17.2 mag. Observations started at twilight.  The observations began at zenit distance = 54 deg. The sun  altitude  is -12.7 deg. 

The galactic latitude b = -60 deg., longitude l = 98 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/ligo_1.php?id=10448

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   12986 | 2019-07-02 00:09:01 |   MASTER-Kislovodsk | (  2h 25m 06.93s , - 6d 48m 44.68s) |   C |    60 | 16.7 |        
   12986 | 2019-07-02 00:09:01 |   MASTER-Kislovodsk | (  2h 33m 13.66s , - 7d 17m 38.44s) |   C |    60 | 16.3 |        
   13073 | 2019-07-02 00:10:29 |   MASTER-Kislovodsk | (  2h 25m 09.32s , - 4d 48m 49.39s) |   C |    60 | 16.6 |        
   13073 | 2019-07-02 00:10:29 |   MASTER-Kislovodsk | (  2h 33m 14.14s , - 5d 17m 26.19s) |   C |    60 | 16.1 |        
   13162 | 2019-07-02 00:11:58 |   MASTER-Kislovodsk | (  2h 25m 12.21s , - 2d 49m 12.05s) |   C |    60 | 16.5 |        
   13162 | 2019-07-02 00:11:58 |   MASTER-Kislovodsk | (  2h 33m 16.00s , - 3d 17m 37.22s) |   C |    60 | 16.4 |        
   13252 | 2019-07-02 00:13:27 |   MASTER-Kislovodsk | (  2h 25m 17.29s , + 1d  5m 19.06s) |   C |    60 | 16.9 |        
   13252 | 2019-07-02 00:13:27 |   MASTER-Kislovodsk | (  2h 33m 21.37s , + 0d 37m 06.72s) |   C |    60 | 16.5 |        
   13341 | 2019-07-02 00:14:56 |   MASTER-Kislovodsk | (  2h 25m 18.73s , + 3d  5m 37.48s) |   C |    60 | 17.2 |        
   13341 | 2019-07-02 00:14:56 |   MASTER-Kislovodsk | (  2h 33m 24.07s , + 2d 37m 30.12s) |   C |    60 | 16.6 |        
   13431 | 2019-07-02 00:16:27 |   MASTER-Kislovodsk | (  2h 33m 12.32s , - 9d 17m 18.56s) |   C |    60 | 15.4 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.
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